SSLC (English Medium) Class 9 - Tamil Nadu Board of Secondary Education Question Bank Solutions for Science

State the advantages of ac over dc.

What is meant by magnification? Write its expression. What is its sign for real image and virtual image?

The fixed temperature at which matter changes state from solid to liquid is called ______.

What are the changes of state in water? Explain.

The third law of Kepler is also known as the Law of ______.

State Kepler’s laws.

The separation of denser particles from lighter particles done by rotation at high speed is called ______.

Plastics made of Polycarbonate (PC) and Acrylonitrile Butadiene Styrene (ABS) are made of resin code ______.

There are ______ plastic resin codes.

Name the three safer resin codes of plastics and describe their features.

Radiochemistry deals with ______.

What is Radio Carbon Dating?

Give an account on phylum Arthropoda.

State whether true or false. If false, correct the statement.

Bone and cartilage are two types of areolar connective tissues.

What is skeletal connective tissue? How is it helpful in the functioning of our body?

Higher Order Thinking Skill.

What is the consequence that occur if all blood platelets are removed from the blood?

Higher Order Thinking Skill.

Which are not true cells in the blood? Why?

Differentiate the following.

Absorption and Assimilation

Vitamin D is called as ______ vitamin as it can be synthesised by the body from the rays of sunlight.

How are vitamins useful to us? Tabulate the sources, deficiency diseases and symptoms of fat soluble vitamins